LabExact
Grade CFP4 Cellulose Filter Paper, Qualitative, 25µm Retention, 55mm, High Flow Rate, 100/Pk SKU: LE-CFP4-055

Featuring hydrophilic cellulose matrix technology delivering the fastest flow rate of any qualitative filter paper for rapid sample processing. Extremely fast filtering with the "fastest flow rate of the qualitative grades" optimizes throughput for high-volume applications while maintaining excellent retention of coarse particles (20-25µm) and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. High-quality cellulose construction with 98% alpha cellulose content provides consistent performance for routine analytical separations where rapid filtration is prioritized over fine particle collection.

Key Cellulose Membrane Characteristics

Ultra-fast flow rate maximizes sample throughput for routine cleanup and clarification processes in laboratory workflows
25µm retention efficiently captures coarse particulates while allowing rapid passage of smaller particles and dissolved materials
Hydrophilic surface chemistry ensures immediate wetting and consistent filtration performance with aqueous solutions and biological fluids
Manufactured from high-quality cotton linters treated to achieve a minimum alpha cellulose content of 98% for chemical purity and reliability
Standard 55mm diameter accommodates most laboratory filtration setups and universal filter holder configurations

Key Construction Characteristics

Optimized porosity structure delivers maximum flow rates while maintaining structural integrity during filtration processes
Robust wet strength construction withstands vacuum-assisted filtration without tearing or compromising filtration efficiency
Excellent retention of gelatinous precipitates such as ferric hydroxide and aluminum hydroxide prevents clogging in challenging applications
100 filters per package provide economical bulk quantities for high-volume laboratory operations and routine quality control
Nonsterile format suitable for general analytical applications where sterility is not required

LE-CFP4-055 filters excel as the preferred first-stage medium in multi-stage filtration processes, accelerating sample preparation cycles while effectively removing coarse debris and sediments. Very useful as a rapid filter for routine cleanup of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical, these filters maximize operational efficiency for environmental monitoring, biological fluid separation, and organic extraction protocols demanding rapid sample processing without compromising analytical accuracy.